Th
- Tha-anne River
- Thackeray Point
- Thad Lake
- Thaddeus Lake
- Thalia
- Thames River
- Thamesville
- Thaolintao Lake
- Thaolintoa Lake
- The Backway
- The Barasway
- The Barasway
- The Barasway
- The Barasway
- The Barasway
- The Basin
- The Beaches
- The Blairs
- The Blairs Island
- The Bluff
- The Buttocks
- The Cactus Hills
- The Castle Gables
- The Cathedral
- The Cone
- The Domes
- The Elbow
- The Elbow
- The Eyebrow Hills
- The Gallery
- The Gate
- The Great Shelf
- The Great Sierra
- The Grove
- The Haypooks
- The Heights
- The Heights Station
- The Lump
- The Middle Sand Hills
- The Muzzle
- The Narrows
- The Narrows
- The Narrows
- The Narrows
- The North Shore
- The Nose
- The Palisades
| - The Pas
- The Peninsula
- The Pillar
- The Points
- The Promontory
- The Rajah
- The Ramparts
- The Saw Teeth Hills
- The Saw's Teeth
- The Shoulder
- The Thirty Mile
- The Twins
- The Twins
- The Two Rivers
- The Wart
- The Weisshorn
- The Wolves
- The-cul-thi-li
- The-cul-thi-li
- Theano Point
- Thedford
- Theitaga Lake
- Thekulthili Lake
- Thekulthili River
- Thelew
- Thelma Creek
- Thelon Bluffs
- Thelon River
- Theodore
- Therien
- Theron Island
- Theron Reefs
- Thesiger Bay
- Thessalon
- Thetford
- Thetford Mines
- Thetis Island
- Thetis Lake
- Thibaudeau
- Thibault Cove
- Thiboult Bay
- Thiboult Cove
- Thicket Portage
- Thin Lake
- Thinlake River
- Third Canyon
- Third Mustus Lake
| - Thirtymile Creek
- Thirtyone Mile Lake
- Thistle Creek
- Thistle Lake
- Thistlethwaite Lake
- Thlewdiaza River
- Thleweechodezeth
- Thlewiaxa River
- Thlewiaza River
- Thluicho Lake
- Thoa River
- Thom Bay
- Thomas Island
- Thomas Lake
- Thomas Lake
- Thomas Point
- Thomas River
- Thompson
- Thompson Creek
- Thompson Glacier
- Thompson Glacier
- Thompson Island
- Thompson Lake
- Thompson Lake
- Thompson Lake
- Thompson Lakes
- Thompson Peninsula
- Thompson Point
- Thompson River
- Thompson River
- Thoms Bay
- Thomsen River
- Thomson Bay
- Thonokied Lake
- Thonokied River
- Thoolezzeh Lake
- Thor Island
- Thorburn Lake
- Thoreau Creek
- Thorhild
- Thormanby Islands
- Thornbury
- Thornbury Lake
- Thornhill
- Thorold
- Thousand Islands
- Thoyenoyekyed
| - Thoynoykyed
- Three Brothers
- Three Creeks
- Three Forks Lake
- Three Hills
- Three Islet Cove
- Three Islets Cove
- Three Lakes
- Three Lakes
- Three Lakes
- Three Rivers
- Three Rock Cove
- Three Sisters
- Three Sisters Rocks
- Threefold Lake
- Threepoint Lake
- Throat River
- Thron-diuck
- Thron-diuck River
- Thubun Lakes
- Thubun River
- Thudade
- Thule Mountains
- Thultue Lake
- Thum Cap
- Thumb Island
- Thunder Bay
- Thunder Bay
- Thunder Bay District
- Thunder Cape
- Thunder Creek
- Thunder Hill
- Thunder House Falls
- Thunder Mountain
- Thunder River
- Thundercloud Range
- Thunderhill Junction
- Thurlow
- Thurlow Island
- Thurso
- Thurston Lake
- Thutade Lake
- Thutage
- Thwart Island
- Thwart Island Harbor
- Thwart Island Harbour
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